Yes. This is a valid point. I observed recently that battery operated vehicle operated on platform no.9 and escalator is available at platform no.10. Platform no.9 & 10 together form an island platform. But I don't know whether there are lifts/escalators for all platforms at SBC. If all platforms doesn't have lifts/escalators then usage of these vehicles might be restricted to some platforms. Only local person can answer regarding this correctly